CMake简单用法

静态库

编译生成静态库，目录结构如下：

learncmake
    static
        CMakeLists.txt
        static_math.h
        static_math.cpp

static_math.h

#pragma once

int mysqrt(int a);

static_math.cpp

#include "static_math.h"

int mysqrt(int a)
{
  return a * a;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(static_math)

aux_source_directory(. MAIN)
set(ALL ${MAIN})

add_library(static_math STATIC ${ALL})

• cmake_minimum_required
  编译所需要的最低CMake版本

• project
  工程名

• aux_source_directory

aux_source_directory(<dir> <variable>)

收集目录中的所有源文件，将列表存储在变量中

• set 设置变量

• add_library 使用指定的源文件将库添加到项目中，注意中间的STATIC。

编译后生成libstatic_math.a静态库文件

动态库

编译生成动态库，目录结构如下：

learncmake
    share
        CMakeLists.txt
        share_math.h
        share_math.cpp

share_math.h

#pragma once

int myadd(int a, int b);

share_math.cpp

#include "share_math.h"

int myadd(int a, int b)
{
  return a + b;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(share_math)

aux_source_directory(. MAIN)
SET(ALL ${MAIN})

add_library(share_math SHARED ${MAIN})

与编译静态库差不多，只是将add_library中的STATIC改为SHARED。

可执行程序

生成可执行程序，使用静态库和动态库
目录如下：

learncmake
    main
        3rd
            share_math
                include
                    share_math.h
                lib
                    libshare_math.so
            static_math
                include
                    static_math.h
                lib
                    libstatic_math.a
        bld
        include
            student.h
        src
            common
                common.h
                common.cpp
            model
                bond.h
                bond.cpp
            main.cpp
            student.cpp
        CMakeLists.txt

如上目录，能覆盖基本的CMake使用

CMakeLists.txt内容如下：

cmake_minimum_required(VERSION 2.8)
project(test)

# 添加头文件目录
include_directories(
	include 
	${CMAKE_CURRENT_SOURCE_DIR}/3rd/static_math/include
	${CMAKE_CURRENT_SOURCE_DIR}/3rd/share_math/include
)

# 添加第三方库lib目录
link_directories(
	${CMAKE_CURRENT_SOURCE_DIR}/3rd/static_math/lib
	${CMAKE_CURRENT_SOURCE_DIR}/3rd/share_math/lib
)


aux_source_directory(src SRC_DIR)
aux_source_directory(src/common COMMON_DIR)
aux_source_directory(src/model MODEL_DIR)

set(ALL 
	${SRC_DIR} 
	${COMMON_DIR}
	${MODEL_DIR}
)

add_executable(test ${ALL})

# 链接第三方库
target_link_libraries(test libstatic_math.a)
target_link_libraries(test libshare_math.so)

在bld目录中编译

多工程模板

主CMakeLists.txt

CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

ADD_DEFINITIONS(-DDISKLESS_CONFIGURATION=1 -DLOG4CXX_STATIC -DNDEBUG)

SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x -g -O3")

SET(topDir ${CMAKE_CURRENT_SOURCE_DIR})
SET(LIBRARY_OUTPUT_PATH ${topDir}/linux)
SET(EXECUTABLE_OUTPUT_PATH ${topDir}/linux)

IF (NOT EXISTS "${topDir}/linux")
    FILE(MAKE_DIRECTORY "${topDir}/linux")
ENDIF()

ADD_SUBDIRECTORY(Common)
ADD_SUBDIRECTORY(Server)

Common动态库CMakeLists.txt

CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

FILE(GLOB SOURCE_FILES
     *.cpp
     cache/*.cpp
     cache/controller/*.cpp
     cache/model/*.cpp
     cache/data/*.cpp)

INCLUDE_DIRECTORIES(./
                    include
                    ../../mq/inc)

ADD_LIBRARY(Common ${SOURCE_FILES})

Server可执行文件CMakeLists.txt

CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

FILE(GLOB SOURCE_FILES
     *.cpp
     *.cc
     cache/*.cpp
     monitor/*.cpp
     service/*.cpp)

INCLUDE_DIRECTORIES(./
                    ../Common
                    ../Common/include
                    ../../mq/inc)

LINK_DIRECTORIES(${topDir}/linux
                 ${topDir}/../mq/lib/linux)

ADD_EXECUTABLE(BasicDataServer ${SOURCE_FILES})
TARGET_LINK_LIBRARIES(Server
                      Common
                      log4cxx
                      mysqlcppconn-static
                      boost_locale
                      boost_date_time)